Ever go to Sports Authority, and get a brick of 500 .22 long rifle cartridges for $2.99? The individual boxes of 25 which comprise the brick are priced for $2.99. But the entire brick just has a sticker on it that says $2.99. Poor checkout clerks don't know the difference between bullets and barbells. I've had this happen to me on three occasions at the same store and each time I had to point it out to the checkout clerk.
"Bullet packaging arbitrage."
